/* ============================================
   The AI Business Toolkit — Editorial Craft
   Warm off-white with amber/copper accent
   ============================================ */

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #FAF7F2;
  --bg-alt: #F0EBE3;
  --bg-dark: #1F150F;
  --text: #2C2825;
  --text-muted: #5C5145;
  --accent: #D97706;
  --accent-dark: #B45309;
  --accent-light: #F59E0B;
  --accent-glow: #FBBF24;
  --cream: #FDF9F3;
  --stone: #C4BCB0;
  --ink: #1A1815;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;
  --radius: 3px;
  --radius-sm: 3px;
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 1.05rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* Grain overlay */
body::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent-dark);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

/* Focus-visible outlines */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* --- Utility --- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-heading {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* --- CTA Button --- */
.cta-button {
  display: inline-block;
  padding: 0.9rem 2.2rem;
  font-size: 1.05rem;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--cream);
  background: var(--accent-dark);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  letter-spacing: 0.01em;
}

.cta-button:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.cta-button:active {
  transform: translateY(0);
}

.cta-button:focus-visible {
  outline: 2px solid var(--accent-glow);
  outline-offset: 2px;
}

.cta-button-lg {
  padding: 1.1rem 2.8rem;
  font-size: 1.2rem;
}

/* ============================================
   SITE HEADER
   ============================================ */
.site-header {
  padding: 1.2rem 0;
  background: var(--bg);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header-logo {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: color 0.3s;
}

.site-header-logo:hover {
  color: var(--accent);
}

.site-header-logo em {
  font-style: italic;
  font-weight: 300;
  color: var(--accent);
}

.site-header-services {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s;
}

.site-header-services:hover {
  color: var(--ink);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  padding: 6rem 0 5rem;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background: var(--bg);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: var(--ink);
}

.hero-subheadline {
  font-family: var(--font-body);
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 500px;
  line-height: 1.75;
}

/* --- 3D Book Mockup --- */
.hero-book {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  perspective: 1200px;
}

.book-mockup {
  position: relative;
  width: 260px;
  height: 360px;
  transform-style: preserve-3d;
  transform: rotateY(-25deg) rotateX(5deg);
  transition: transform 0.6s ease;
}

@media (prefers-reduced-motion: reduce) {
  .book-mockup {
    transition: none;
  }
}

.book-mockup:hover {
  transform: rotateY(-15deg) rotateX(2deg);
}

.book-cover {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, var(--accent-glow) 0%, var(--accent) 40%, var(--accent-dark) 100%);
  border-radius: 2px 8px 8px 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    6px 6px 30px rgba(0, 0, 0, 0.15),
    inset 0 0 60px rgba(255, 255, 255, 0.08);
  transform: translateZ(20px);
}

.book-cover-content {
  text-align: center;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.book-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: rgba(255, 255, 255, 0.75);
}

.book-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.book-subtitle {
  font-family: var(--font-body);
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0.5rem;
}

.book-spine {
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-dark), #92400E);
  border-radius: 2px 0 0 2px;
  transform: rotateY(90deg) translateZ(0px) translateX(-20px);
  transform-origin: left center;
}

.book-shadow {
  position: absolute;
  bottom: -30px;
  left: 10%;
  width: 80%;
  height: 30px;
  background: radial-gradient(ellipse, rgba(180, 83, 9, 0.12), transparent 70%);
  filter: blur(12px);
  transform: translateZ(-10px);
}

/* ============================================
   PAIN POINTS
   ============================================ */
.pain-points {
  padding: 5rem 0;
  background: var(--bg);
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.pain-card {
  background: var(--cream);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: border-color var(--transition), transform var(--transition);
}

.pain-card:hover {
  border-color: var(--stone);
  transform: translateY(-2px);
}

.pain-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(217, 119, 6, 0.08);
  border-radius: var(--radius);
  color: var(--accent);
}

.pain-card p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* ============================================
   WHAT'S INSIDE — CATEGORY CARDS (dark bg)
   ============================================ */
.whats-inside {
  padding: 5rem 0;
  background: var(--bg-dark);
}

.whats-inside .section-heading {
  color: var(--cream);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.category-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color var(--transition), transform var(--transition);
}

.category-card:hover {
  border-color: rgba(217, 119, 6, 0.4);
  transform: translateY(-2px);
}

.category-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--accent-glow);
}

.prompt-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.prompt-list li {
  padding-left: 1.25rem;
  position: relative;
  color: rgba(253, 249, 243, 0.85);
  font-size: 0.92rem;
}

.prompt-list li::before {
  content: "\2022";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.whats-inside .item-outcome {
  color: rgba(253, 249, 243, 0.5);
}

/* ============================================
   SAMPLE SYSTEM
   ============================================ */
.sample-prompt {
  padding: 5rem 0;
  background: var(--bg-alt);
}

.sample-card {
  background: var(--cream);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius);
  padding: 2.5rem;
  max-width: 860px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.sample-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-glow));
}

.sample-header {
  margin-bottom: 1.5rem;
}

.sample-category-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(217, 119, 6, 0.1);
  color: var(--accent);
  border-radius: 3px;
  margin-bottom: 0.75rem;
}

.sample-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
}

.sample-description {
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  font-size: 1rem;
  line-height: 1.75;
}

.prompt-template {
  background: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  margin-bottom: 1.75rem;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--accent-glow);
  white-space: pre-wrap;
}

.prompt-template .placeholder {
  color: var(--accent-light);
  font-weight: 600;
}

.sample-tips h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.sample-tips ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.sample-tips ul li {
  padding-left: 1.25rem;
  position: relative;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.sample-tips ul li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ============================================
   MID-PAGE CTA
   ============================================ */
.mid-cta {
  padding: 4rem 0;
  text-align: center;
  background: var(--bg);
}

.mid-cta h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text);
}

/* ============================================
   SOCIAL PROOF / TESTIMONIALS
   ============================================ */
.social-proof {
  padding: 5rem 0;
  background: var(--bg);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.testimonial-card {
  background: var(--cream);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color var(--transition), transform var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-2px);
}

.testimonial-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--cream);
  flex-shrink: 0;
}

.testimonial-quote {
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.7;
  font-style: normal;
  border: none;
}

.testimonial-cite {
  font-style: normal;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ============================================
   DIFFERENTIATORS
   ============================================ */
.differentiators {
  padding: 5rem 0;
  background: var(--cream);
}
.differentiators h2 {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 700;
  color: var(--ink);
  text-align: center;
  margin-bottom: 2.5rem;
}
.diff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.diff-card {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 3px;
  padding: 2rem;
  text-align: center;
}
.diff-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}
.diff-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
}
.diff-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================
   ABOUT AUTHOR
   ============================================ */
.about-author {
  padding: 5rem 0;
  text-align: center;
  background: var(--bg-alt);
}

.about-author .container {
  max-width: 580px;
}

.about-author .author-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--cream);
  margin: 0 auto 1.5rem;
}

.about-author h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text);
}

.about-author p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-muted);
}

/* ============================================
   30-DAY GUARANTEE
   ============================================ */
.guarantee {
  padding: 5rem 0;
  text-align: center;
  background: var(--bg);
}

.guarantee-card {
  max-width: 580px;
  margin: 0 auto;
  padding: 2.5rem;
  background: var(--cream);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
}

.guarantee-card .guarantee-icon {
  font-size: 40px;
  margin-bottom: 1rem;
}

.guarantee-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.guarantee-card p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ============================================
   FINAL CTA
   ============================================ */
.final-cta {
  padding: 5rem 0;
  text-align: center;
  background: var(--bg);
}

.final-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.price-tag {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 900;
  color: var(--accent);
}

.cta-subtext {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.guarantee-text {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.checkout-reassurance {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted, #8A8279);
}
.checkout-reassurance span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* ============================================
   CROSS-SELL
   ============================================ */
.cross-sell {
  padding: 5rem 0;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  background: var(--bg);
}

.cross-sell .section-heading {
  margin-bottom: 1rem;
}

.cross-sell-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 2.5rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cross-sell-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  max-width: 700px;
  margin: 0 auto;
}

.cross-sell-card {
  background: var(--cream);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius);
  padding: 1.75rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.3s, transform 0.3s;
}

.cross-sell-card:hover {
  transform: translateY(-2px);
}

.cross-sell-card--blue:hover { border-color: rgba(59, 130, 246, 0.4); }
.cross-sell-card--green:hover { border-color: rgba(16, 185, 129, 0.4); }
.cross-sell-card--amber:hover { border-color: rgba(245, 158, 11, 0.4); }
.cross-sell-card--rose:hover { border-color: rgba(194, 114, 126, 0.4); }
.cross-sell-card--rose .cross-sell-tag { color: #C2727E; }
.cross-sell-card--rose .cross-sell-price { color: #C2727E; }

.cross-sell-tag {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.cross-sell-card--blue .cross-sell-tag { color: #3b82f6; }
.cross-sell-card--green .cross-sell-tag { color: #10b981; }
.cross-sell-card--amber .cross-sell-tag { color: #f59e0b; }

.cross-sell-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.cross-sell-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 0.75rem;
}

.cross-sell-price {
  font-weight: 600;
  font-size: 1rem;
}

.cross-sell-card--blue .cross-sell-price { color: #3b82f6; }
.cross-sell-card--green .cross-sell-price { color: #10b981; }
.cross-sell-card--amber .cross-sell-price { color: #f59e0b; }

.cross-sell-arrow {
  display: inline-block;
  margin-left: 0.3rem;
  transition: transform 0.3s;
}

.cross-sell-card:hover .cross-sell-arrow {
  transform: translateX(4px);
}

/* ============================================
   FAQ ACCORDION
   ============================================ */
.faq {
  padding: 5rem 0;
  background: var(--bg);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.faq-item {
  background: var(--cream);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item.is-open {
  border-color: var(--accent);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.5rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  gap: 1rem;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--accent);
}

.faq-icon {
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--text-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
  line-height: 1;
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer p {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ============================================
   NEWSLETTER
   ============================================ */
.newsletter {
  padding: 5rem 0;
  background: var(--bg-alt);
  text-align: center;
}

.newsletter-inner {
  max-width: 480px;
}

.newsletter h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.newsletter-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.newsletter-free {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.newsletter-form input {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--stone);
  background: var(--cream);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition);
}

.newsletter-form input:focus {
  border-color: var(--accent);
}

.newsletter-form input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.newsletter-form input::placeholder {
  color: var(--stone);
}

.newsletter-form button {
  padding: 0.8rem;
  background: var(--accent);
  color: var(--cream);
  border: none;
  border-radius: 4px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition);
}

.newsletter-form button:hover {
  background: var(--accent-dark);
}

.newsletter-form button:focus-visible {
  outline: 2px solid var(--accent-glow);
  outline-offset: 2px;
}

.newsletter-msg {
  color: var(--text-muted);
  margin-top: 1rem;
  display: none;
  font-size: 0.9rem;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  padding: 2.5rem 0;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  background: var(--bg);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.copyright {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--text);
}

/* Item outcome phrase */
.item-outcome {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.1rem;
}

/* ============================================
   RESPONSIVE — Tablet (<=1024px)
   ============================================ */
@media (max-width: 1024px) {
  .hero-inner {
    gap: 3rem;
  }

  .hero-headline {
    font-size: 2.6rem;
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   RESPONSIVE — Mobile (<=768px)
   ============================================ */
@media (max-width: 768px) {
  .hero {
    padding: 4rem 0 3rem;
    min-height: auto;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    align-items: center;
  }

  .hero-subheadline {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-headline {
    font-size: 2.2rem;
  }

  .hero-book {
    order: -1;
  }

  .book-mockup {
    width: 200px;
    height: 270px;
  }

  .section-heading {
    font-size: 1.5rem;
    margin-bottom: 2rem;
  }

  .pain-grid {
    grid-template-columns: 1fr;
  }

  .category-grid {
    grid-template-columns: 1fr;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .sample-card {
    padding: 1.75rem 1.25rem;
  }

  .cross-sell-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .cta-button {
    width: 100%;
    text-align: center;
  }

  .cta-button-lg {
    width: auto;
    max-width: 100%;
  }

  .price-tag {
    font-size: 2.5rem;
  }

  .about-author { padding: 4rem 0; }
  .about-author h2 { font-size: 1.5rem; }
  .mid-cta { padding: 3rem 0; }
  .mid-cta h2 { font-size: 1.5rem; }
  .guarantee { padding: 4rem 0; }
  .guarantee-card { padding: 1.5rem; }
}

/* Screen reader only (visually hidden but accessible) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}